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THE OPEN-RING ACTIVE-BUS NETWORK STRUCTURE - ACCESS TECHNIQUES AND THEIR HEAVY-TRAFFIC PERFORMANCE

IEEE TRANSACTIONS ON COMMUNICATIONS 1991年第4期39卷 474-477页

作者： MUKHERJEE, B Department of Electrical Engineering and Computer Science Division of Computer Science University of California Davis CA USA

A new network structure, called the open-ring/active-bus structure, for packet-switched, multiple-access communication over high-speed, fiber-optic networks is studied. This structure suffers from fewer synchronization constraints than a closed ring, and can provide a capacity greater than unity because it allows reuse of channel bandwidth. Various access mechanisms on this structure are studied, and their channel capacity analyzed.

关键词： Optical fiber networks Access protocols Network topology Channel capacity Broadcasting Bandwidth Signal processing High speed optical techniques Optical network units Optical packet switching

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Designing Intuitive User Interfaces in Human-computer Interaction for Enhanced Digital Experience

Designing Intuitive User Interfaces in Human-Computer Intera...

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Intelligent Control, Computing and Communications (IC3), International Conference on

作者： V.S Anusuya Devi Prabhakar Agrawal R S Sengar Amandeep Nagpal Tamam Ali Abd Ulabbas Abedi Kathi Chandra Mouli A Sangeetha Departmento of Applied Sciences New Horizon College of Engineering Bangalore India Department of Electrical Electronics & Communication Engineering Galgotias university Gerater Noida Uttar Pradesh Department of Electrical & Electronics Engineering GL Bajaj Group of Institutions Mathura Lovely Professional University Phagwara India Medical Technology The Islamic University Najaf Iraq Department of CSE GRIET Bachupally Hyderabad Telangana India Department of Computer Science and Engineering MLR Institute of Technology Hyderabad Telangana India

ISBN: (数字)9798331527495

ISBN: (纸本)9798331527501

The article “Designing Intuitive User Interfaces in Human-computer Interaction for Enhanced Digital Experience” describes a novel approach. By incorporating cutting-edge technologies and user-centric design principles into this innovative interface design, a significant advancement has been made. An inventive approach to creating user interfaces for any profession is suggested. It is the most amazing thing you have ever seen. Focusing on oneself clarifies the complexity of the mind. User-centered designs most likely represent their way of thinking. This improves the interface's usability by strengthening links. By showing how interfaces should be user extensions rather than just tools, this idea revolutionizes user interface design. The goal of this method is to respond to user input as soon as possible. Interfaces that combine mood analysis and real-time monitoring can potentially sense a user's emotions and actions in real time. Definitely not. Therefore, user interfaces could change depending on how the user interacts with the system. Because this approach allows for fully immersive experiences, virtual and augmented reality will be revolutionized. Integrating physical settings with virtual environments may trap people in experiences that are only available through a finite number of one-way paths. This quality attracts customers and makes it easier to create creative digital experiences. It is also recommended to use machine learning to allow for interface customization. Through personalization, screens could adapt, through reinforcement learning, to the words and actions of the user. The adaptive learning of the suggested approach might provide clients with a novel experience. To summarize, the proposed methodology reassesses cutting-edge technologies in relation to user-intuitive designs by prioritizing user-centric principles and adjusting based on feedback from users. These advancements have improved digital interactions, which has led to the expansion of co

关键词： Human computer interaction Adaptive learning Mood User centered design Virtual environments Reinforcement learning Real-time systems User experience Usability Augmented reality

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Photonic-Assisted Joint Radar and Communication System Using Overlapped Spectrum for High-Resolution Ranging and High-Speed Data Transmission

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IEEE Transactions on Microwave Theory and Techniques 2025年

作者： Chen, Jingxu Huang, Haikun Zheng, Ruiqi Mo, Baohang Yi, Zhenzhao Wo, Jianghai Zhang, Jiejun Wang, Xudong Feng, Xinhuan Yao, Jianping Jinan University Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications Institute of Photonics Technology Guangzhou511443 China Jinan University College of Physics and Optoelectronic Engineering Guangzhou510632 China University of Ottawa Microwave Photonics Research Laboratory School of Electrical Engineering and Computer Science OttawaONK1N 6N5 Canada

We propose and demonstrate a photonic-assisted joint radar and communication (JRC) system using a JRC signal with overlapped spectrum to support simultaneous wideband ranging and high-speed communications. For radar ranging, an electrical linearly-frequency-modulated (LFM) waveform is modulated on an optical carrier at a Mach-Zehnder modulator (MZM) biased at the null point to generate odd-order sidebands. By filtering out the first-order sidebands, two third-order sidebands are obtained. By beating the two sidebands at a photodetector (PD), a frequency-sextupled electrical LFM with sextupled bandwidth is generated. For wireless communications, a binary phase-shift keying (BPSK) or quadrature phase-shift keying (QPSK) signal is modulated on one of the third-order sidebands. By beating the modulated sideband with the other unmodulated sideband, a frequency upconverted wireless signal is generated. The JRC signals are radiated to free space. At the radar receiver, the echo signal is applied to another MZM where the signal is optically dechirped to extract the target information. At the communication receiver, the JRC signal is received and applied to an MZM, where the radar and the communication signals beat to generate the original communication signal. Since no local oscillator (LO) signal is employed, the system is greatly simplified. The dual functions of the system are evaluated by an experiment. For radar ranging, a wideband LFM radar signal with a 9.6-GHz bandwidth is generated, and radar ranging with a high range resolution of 2.5 cm is obtained. For wireless communication, a 4-GBaud/s BPSK and a 2-GBaud/s QPSK signal are transmitted over 20 m, with the bit error rates (BERs) of 1.82× 10-5 and 1.96× 10-5 , respectively, which are below the forward error correction (FEC) limit for error free communications. © 2025 IEEE.

关键词： Quadrature phase shift keying

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Bundle-wise functional connectivity density and fractional amplitude of low-frequency fluctuations decrease in white matter in preclinical Alzheimer’s disease and are associated with Aβ levels and cognition

Bundle-wise functional connectivity density and fractional a...

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Medical Imaging 2025: Clinical and Biomedical Imaging

作者： Chang, Yukie Xu, Lyuan Gao, Chenyu Khairi, Nazirah Mohd Gore, John C. Landman, Bennett A. Gao, Yurui Dept. of Computer Science Pomona College 333 N College Way ClaremontCA91711 United States Dept. of Neuroscience Pomona College 333 N College Way ClaremontCA91711 United States Dept. of Electrical and Computer Engineering Vanderbilt Univ. 2301 Vanderbilt Place NashvilleTN37235 United States VUMC 1161 21st Ave. NashvilleTN37232 United States Dept. of Radiology and Radiological Sciences VUMC 1161 21st Ave. NashvilleTN37232 United States Dept. of Biomedical Engineering Vanderbilt Univ. 2301 Vanderbilt Place NashvilleTN37235 United States

ISBN: (纸本)9781510685987

Neurophysiological changes associated with Alzheimer’s disease (AD) begin decades before clinical symptoms emerge, during preclinical AD. Functional abnormalities in white matter (WM) at this preclinical stage remain largely unexplored. We obtained resting-state functional magnetic resonance imaging (rs-fMRI) data of 295 participants from the Alzheimer’s Disease Neuroimaging Initiative (ADNI) and evaluated bundle-wise functional connectivity density (FCD) and fractional amplitude of low-frequency fluctuations (fALFF) across 46 bundles, which reflects the strength of synchronizations of BOLD dynamics between each WM bundle and whole-brain 200 GM parcels, and spontaneous neural activity of each WM bundle, respectively. To mitigate site/scanner effects on the metrics, ComBat harmonization was applied to the data. We then performed permutation tests (n=5,000) on each harmonized metric for each bundle to determine differences in FCD and fALFF in preclinical AD relative to controls, adjusting for sex, age, and education using multiple linear regression. Linear correlations of the metrics with the pathological biomarker beta-amyloid (Aβ) and cognitive scores (mPACC and ADAS11) were assessed using general linear models. Multiple comparisons were corrected via a false discovery rate (FDR). We found that preclinical AD patients had reduced FCD and fALFF in specific WM bundles, such as cingulate and hippocampal cingulum, compared to controls (FDR corrected p © 2025 SPIE.

关键词： Brain mapping

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INTERNAL SCHEDULING AND MEMORY CONTENTION

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IEEE TRANSACTIONS ON SOFTWARE engineering 1981年第1期7卷 135-146页

作者： SMITH, AJ Computer Science Division Department of Electrical Engineering and Computer Sciences University of California

It has been suggested that the algorithm used to schedule those processes active and in main memory can have an effect on memory contention. We create models for memory contention in a system that uses global LRU replacement and either round robin or priority internal scheduling. Parameters to our model include the ratio of secondary storage to primary storage access times, thus allowing consideration of a variety of storage technologies. The round robin quantum size is included and is shown to have some effect. Our model uses LRU miss ratio curves and thus reflects actual program characteristics. Trace driven simulations are used to verify the accuracy of the models. We find that in most cases internal scheduling has only a small effect on page fault rates and CPU utilization. In certain cases, however priority scheduling is found to besignificant in relieving thrashing.

关键词： Virtual Memory LRU Memory Contention Paging Priority Scheduling Program Behavior Round Robin Scheduling Scheduling Storage Technology Thrashing

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Learning-based control for discrete-time constrained nonzero-sum games

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CAAI Transactions on Intelligence Technology 2021年第2期6卷 203-213页

作者： Chaoxu Mu Jiangwen Peng Yufei Tang School of Electrical and Information Engineering Tianjin UniversityTianjinChina Department of Computer Electrical Engineering and Computer ScienceFlorida Atlantic UniversityUSA

A generalized policy-iteration-based solution to a class of discrete-time multi-player nonzero-sum games concerning the control constraints was *** on initial admissible control policies,the iterative value function of each player converges to the optimum approximately,which is structured by the iterative control policies satisfying the Nash ***,the stability analysis is shown to illustrate that the iterative control policies can stabilize the system and minimize the performance index function of each ***,neural networks are implemented to approximate the iterative control policies and value functions with the impact of control ***,two numerical simulations of the discrete-time two-player non-zero-sum games for linear and non-linear systems are shown to illustrate the effectiveness of the proposed scheme.

关键词： iterative nonzero approximate

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Rydberg Atomic Quantum Receivers for the Multi-User MIMO Uplink

arXiv

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arXiv 2025年

作者： Gong, Tierui Yuen, Chau See, Chong Meng Samson Debbah, Mérouane Hanzo, Lajos School of Electrical and Electronics Engineering Nanyang Technological University 639798 Singapore DSO National Laboratories 118225 Singapore KU 6G Research Center Department of Computer and Information Engineering Khalifa University Abu Dhabi127788 United Arab Emirates CentraleSupelec University Paris-Saclay Gif-sur-Yvette91192 France School of Electronics and Computer Science University of Southampton SouthamptonSO17 1BJ United Kingdom

Rydberg atomic quantum receivers exhibit great potential in assisting classical wireless communications due to their outstanding advantages in detecting radio frequency signals. To realize this potential, we integrate a Rydberg atomic quantum receiver into a classical multi-user multiple-input multiple-output (MIMO) scheme to form a multi-user Rydberg atomic quantum MIMO (RAQ-MIMO) system for the uplink. To study this system, we first construct an equivalent baseband signal model, which facilitates convenient system design, signal processing and optimizations. We then study the ergodic achievable rates under both the maximum ratio combining (MRC) and zero-forcing (ZF) schemes by deriving their tight lower bounds. We next compare the ergodic achievable rates of the RAQ-MIMO and the conventional massive MIMO schemes by offering a closed-form expression for the difference of their ergodic achievable rates, which allows us to directly compare the two systems. Our results show that RAQ-MIMO allows the average transmit power of users to be > 25 dBm lower than that of the conventional massive MIMO. Viewed from a different perspective, an extra ∼ 8.8 bits/s/Hz/user rate becomes achievable by ZF RAQ-MIMO. Copyright © 2025, The Authors. All rights reserved.

关键词： Rydberg states

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Comparative study of indirect and direct feature extraction algorithms in classifying tea varieties using near-infrared spectroscopy

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Current Research in Food science 2025年 10卷 101065页

作者： Zhou, Xuefan Wu, Xiaohong Wu, Bin School of Electrical and Information Engineering Jiangsu University Zhenjiang China High-tech Key Laboratory of Agricultural Equipment and Intelligence of Jiangsu Province Jiangsu University Zhenjiang China Department of Information Engineering Chuzhou Polytechnic Chuzhou China School of Computer Science and Engineering Southeast University Nanjing 211102 China

Tea, a globally cherished beverage, has become an integral part of daily life, particularly in China. Given the extensive variety of teas, each distinguished by unique price points, flavors, and health benefits, effective classification within the tea industry is crucial to address the diverse preferences of consumers. This study utilized indirect and direct feature extraction algorithms to analyze the Near-Infrared (NIR) spectra of various tea varieties and compared their classification outcomes. Principal Component Analysis (PCA) was employed as a dimensionality reduction technique for indirect feature extraction algorithms. The study began with the collection of NIR spectra from different tea varieties, followed by the application of three spectral preprocessing algorithms. Indirect and direct feature extraction algorithms were then used to reduce the dimensionality of the preprocessed data. A K-Nearest Neighbors (KNN) classifier analyzed the dimensionality-reduced data to determine classification accuracy. The findings revealed that the classification accuracies of indirect feature extraction algorithms consistently exceeded those of direct feature extraction algorithms, with the former generally surpassing 90.0 %, while the latter remained lower. This indicates that indirect feature extraction algorithms are more adept at handling complex spectral data. A significant decline in classification accuracy was observed when data were processed with Savitzky-Golay (SG). An in-depth analysis led to the development of an optimization plan incorporating the Successive Projections Algorithm (SPA), which effectively enhanced all classification accuracies to above 90 %. © 2025 The Authors

关键词： Classification Feature extraction Near-infrared spectroscopy Spectral preprocessing Tea

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Distribution system harmonic filter planning

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IEEE TRANSACTIONS ON POWER DELIVERY 1996年第4期11卷 2005-2012页

作者： Ortmeyer, TH Hiyama, T Electrical and Computer Engineering Department Clarkson University Potsdam NY USA Department of Electrical Engineering and Computer Science Kumamoto University Kumamoto Japan

A planning methodology for distribution system harmonic filtering is proposed. The method is intended for use on radial distribution systems with no large harmonic sources. It is proposed that 60 hertz var planning be done first to allocate the var resources. Following this process, the harmonic filter planning can be readily accomplished Characteristics of the distribution systems and the harmonic sources are exploited to provide a practical filter planning technique which is effective and efficient.

关键词： harmonic filtering electric power distribution systems

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Optimal PMU Placement via Quantum Optimization

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IEEE Transactions on Smart Grid 2025年

作者： Jiang, Yuqi Liang, Zhiding Li, Yan Morstyn, Thomas Department of Electrical Engineering Pennsylvania State University University ParkPA16802 United States Rensselaer Polytechnic Institute Department of Computer Science TroyNY12180 United States University of Oxford Department of Engineering Science Wellington Square OxfordOX1 2JD United Kingdom

Phasor Measurement Units (PMUs) are essential for real-time monitoring and improving grid observability. Determining the optimal PMU installation is critical, especially as the penetration of renewable energy resources increases, as the Optimal PMU Placement (OPMUP) can guarantee full system observability and reduce the installation cost. However, identifying the optimal PMU installation is a prototypical combinatorial optimization problem, requiring substantial classical computational resources. Furthermore, the significant expansion of the grid in terms of renewable energy integration makes the determination of optimal PMU placement increasingly computationally intensive. In this work, a hybrid quantum-classical approach, Quantum Approximate Optimization Algorithm (QAOA), is developed to effectively solve the optimal PMU installation problem under normal and channel limitation scenarios. A tailored objective function is proposed for quantum optimization, which takes into account both PMU placement cost and system observability constraints. To analyze the observability of QAOA-generated solution distributions, recursion-based Depth-First Search and Breadth-First Search algorithms are proposed for normal and channellimited scenarios. These methods determine solution feasibility on classical computers with O(N + M) complexity, outperforming the O(N2) complexity of inequality-based approaches, where N and M denote the number of buses and branches, respectively. In addition, the proposed quantum optimization framework can significantly reduce the computational complexity from the polynomial or exponential levels required by previous classical methods, i.e., O(RN) on quantum circuits and O(R(M+N)) on classical resources, where R is the repetition times of quantum circuits executions. The proposed method is tested on IEEE 9-, 14-, 24-, and 30-bus systems, where better installation results are achieved compared to the state-of-the-art results, providing a new baseline for

关键词： Qubits

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